US Bridges

Guilde Road over Riley Creek

Good

La Salle Parish, Louisiana · 0.1 MI S of Tarpley Rd. · Structure no. 583000000000123

Built
2018
7 years old
Condition
Good
inspected July 2023
Type
Culvert
Concrete
Length
32 ft
4 main spans
Daily traffic
119
2009 count
Owner
County
County Highway Agency

About this bridge

Guilde Road over Riley Creek is a concrete culvert carrying Guilde Road over Riley Creek in La Salle Parish, Louisiana. It was built in 2018, so it is 7 years old, younger than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 119 vehicles a day, projected to reach 130 by 2029. The structure is 32 ft (9.8 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesGuilde Road
CrossesRiley Creek
Location0.1 MI S of Tarpley Rd.
RouteCounty Highway 0
Coordinates31.63258, -92.21119
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.1 US tons
Inventory rating55 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadGreater than HL 93
Structure length32 ft (9.8 m)
Longest span8 ft (2.4 m)
Deck width40 ft (12.2 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic119 (2009)
Projected traffic130 by 2029
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Guilde Road over Riley Creek built?

It was built in 2018, making it 7 years old in 2025.

What condition is Guilde Road over Riley Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2023.

How much traffic does Guilde Road over Riley Creek carry?

About 119 vehicles per day (2009 count).

How long is Guilde Road over Riley Creek?

The structure is 32 ft (9.8 m) long with a longest span of 8 ft (2.4 m) and a deck 40 ft wide.

Who owns Guilde Road over Riley Creek?

It is owned by the County Highway Agency.